Στέφανος Μπουρτζούδης

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    18-Jan-2017
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Transcript of Στέφανος Μπουρτζούδης

Presentacin de PowerPoint

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tweets:Twitter REST APITwitter Streaming API

(1/6)

-: tweets MongoDBtext tweetpublicationTime tweet millisecondsusername tweethashtags hashtags tweetentities tweetreposts tweet original boolean tweet retweetproperNouns tweetposTags tweetcleanText tweet accepted boolean tweet

tweet: SentiStrength (Thelwall et al. 2012) 2 . . (3,5)

(2/6)

tweets: URL mentions # hashtags

: Lucene (n-grams) (3/6)

: tweets (timeslots)

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(5/6)

: Palshikar (2009) windowSize, strigency

: Erdem et al. (2011)

: SCAN (Xu et al. 2007) (6/6)

tweets : Lucene

12 13 32 64 1 . 2014

:12.835.386 tweets 1 2007 18 2014

timeslotPrecisionRecallF1TPP300,650,74120,88730,80776385300,70,73170,88240,80006082300,750,93331,00000,96551415600,650,83021,00000,90724453600,70,80771,00000,89364252600,750,93331,00000,96551415900,650,86961,00000,93022023900,70,85711,00000,92311821900,750,75001,00000,857134

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TimeslotPrecisionRecallF1TPP10.450,73330,78570,7586111510.50,72730,80000,761981110.550,85711,00000,92316710.60,85711,00000,92316710.651,00001,00001,00002220.450,80001,00000,8889121520.50,81821,00000,900091120.550,80001,00000,888981020.60,80001,00000,88894520.650,66671,00000,80002350.451,00001,00001,00002250.51,00001,00001,00001150.551,00001,00001,00001150.61,00001,00001,00001150.651,00001,00001,000011

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